3x + 5 = 2x + 7 What should you do first to isolate the variable?

Answers

Answer 1

Answer:

you can subtract 2x from both sides

Then subtract 5 from both sides.

x = 2 is what the equation gives you

Step-by-step explanation:

You can do one of two things.

1. You can subtract 2x from both sides of the equation

or

2. You can subtract 5 from both sides of the equation.

Either one will give you the correct answer.

3x - 2x + 5 = 2x - 2x + 7    Combine the xs

1x + 5 = 7                             Subtract 5 from both sides.

x + 5-5 = 7-5

x = 2

Answer 2

Answer:

subtract the lowest variable from the highest variable.

Step-by-step explanation:

3x+5=2x+7

1x+5=7

add the 5 to the 7

12

divide 12 and the 3x

Answer: 4.

x=4


Related Questions

30 inches in centimetres

Answers

Answer:

76.2 cm

Step-by-step explanation:

If you convert, said inches, it wouldn't be an exact number, but it would equal 76.2.

ANSWER WHAT YOU CAN NEED THEM ASAP PLZ

Answers

Answer:

5. 23

6. 26

7. 20

8. 45

9. 15

10. 120

11. 60 full triangle is 180 and since it is equilateral you divide it by 3 you get 60

12. It is not possible. if you use the pyagorean theorem (not sure on spelling of that?) you get 16 so its not possible for it to be 12.

*will give brainliest*
While solving an equation, if the variable term becomes zero, and the equation makes a true statement, then the solution is (no solution, one solution, infinite solutions).

Answers

i think the answer is one solution

If 3 pens cost $2, then how many can can you buy with $20

Answers

Answer:

30

Step-by-step explanation:

Marcos delivers newspapers during his summer break. He delivers a different number of papers each day. What percent of the total number of newspapers is delivered on Saturday and Sunday?
A.
52.5%
B.
105%
C.
40%
D.
32.5%

Answers

Answer:

52.2% or A

Step-by-step explanation:

55+50 = 105

105/200 = 0.525

0.525 x 100 (to get the percent) = 52.5%

Answer:

52.5%

Step-by-step explanation:

Add together the number of papers delivered on Saturday and Sunday. Then divide that by the total number of papers delivered.

55+50 = 105

105/200=52.5%

solve each system by graphing​

Answers

Answer:

x4 y9?

Step-by-step explanation:

Don't put my answer in just maike sure its correct!

It would look like this I think

In the equation a+b=8, what is the value of a if b= -1

Answers

Answer:

9

Step-by-step explanation:

a + b = 8

a + (-1) = 8

a - (-1) = 8 - (-1)

a = 9

What is the length of AC?

Answers


7/x = 84 / (156 -x)
84x = 7(156 -x)
84x = 1092 - 7x
91x = 1092
x = 12

AC = 156 - 12 = 144

answer
D. 144

Devin has 48 gingerbread cookies and 60 candy canes that he will put in gift bags for his friends and family. What is the greatest number of gift bags he can make if each bag will have the same number of cookies and the same number of candy canes? Also, identify the number of cookies and candy canes each bag will have.

Answers

Answer:

12 is the largest one number of gift bags he can make. Each will have 4 gingerbread cookies and 5 candy canes

Step-by-step explanation:

Analyze the diagram below and complete the instructions that follow.
7
y
450
X
Find the value of x and the value of y.
A. x = 16, y = 9V2
B. x = 7, y = 16 V2
C. x= 16V/, y = 7.12
D. x= 7/3, y = 16

Answers

Answer:

[tex]A.\ ~~x=16,~ y=9\sqrt{2}[/tex]

Step-by-step explanation:

We have completed the diagram with some lengths that come directly from the figure's symmetry.

Note the triangle formed at the left side of the trapezium is isosceles because it has an angle of 90° and another angle of 45°.

This means the base of the triangle has the same length as the height of 9.

This means the total base of the trapezium is x = 9 + 7 = 16

The right triangle must satisfy Pythagora's Theorem:

[tex]y^2=9^2+9^2[/tex]

[tex]y^2=2*9^2[/tex]

[tex]y=\sqrt{2*9^2}[/tex]

Simplifying the radical:

[tex]y=9\sqrt{2}[/tex]

The correct answer is: [tex]\mathbf{A.\ ~~x=16,~ y=9\sqrt{2}}[/tex]

Penelope's MP3 player has 20 megabytes of memory. She has already downloaded 11 megabytesShe will continue to download m more megabytes. Write and solve an inequality that shows all the values of m that Penelope can download to her MP3 player .

Answers

Answer:

9 MB

Step-by-step explanation:

20 - 11 = 9

Mrs. Brown asked four students how to find the perimeter of a rectangle where l = length and w = width. Their answers are below. Which would NOT find the perimeter of a rectangle?
A. P = l + w + l + w

B. P = 2 x l + 2 x w

C. P = 2(l + w)

D. P = 2(l x w)

Answers

Answer:

i think its B but i'm not 100 percent sure sorry if im not but i think i am

Step-by-step explanation:

Answer:

It's D

Step-by-step explanation:

You l*w is the area.

Find the slope-intercept equation of the line.

Need the equation
Plz help not jus the answer

Answers

Answer:

y=-3x+5

Step-by-step explanation:

Answer is Y=-3x+5

Answer:

y = -1/2x + 5

Step-by-step explanation:

First, we need to find the slope. Slope is nothing but the height of the triangle over the length of the triangle. Since the height is 5 is the length is 10, the slope should be 5/10. But, since the line is slanting downwards, the slope is negative. So it is -5/10, or -1/2 when simplified. Next, we need to find the y intercept. Y intercept is nothing but where the line crosses the y axis, so the y intercept should be 5. The slope intercept is y = mx+b, where m is the slope and y intercept is b, so our equation should be y = -1/2x + 5.

The reason that we are not counting the individual squares is because they already labeled the graph. So, we have to count accordingly.

PLSSS HELP An amusement park has two types of season passes. Plan 1 charges a one-time fee of $175.00 for admission plus $8.00 every trip for parking.
Plan 2 charges a one-time fee of $125.00 for parking plus $13.00 every trip for admission. For what number of trips is the cost of these plans
the same?

Answers

Answer:

Dude..... I have no idea what the answer is..... but i give you my good luck to pass math class without going through 50 mental breakdowns.

Step-by-step explanation:

math is disgusting

Solve the inequality 7x - 11 < 9x + 22.

Answers

Answer:

x>-33/2

Step-by-step explanation:

this is because you must solve the equation. when you divide by a negative number in order to get the x alone the sign of the inequality flips.

Answer:

[tex]x > \frac{ - 11 - 22}{2} [/tex]

Step-by-step explanation:

Step 1: Subtract 7x7x from both sides.

−11<9x+22.−7x

Step 2:Simplify 9x+22.-7x9x+22.−7x to 2x+22.2x+22.

−11<2x+22.

Step 3:Subtract 22.22. from both sides.

−11−22.<2x

Step 4:Divide both sides by 22.

[tex] \frac{ - 11 - 22}{2} < x[/tex]

Step 5, Switch sides.

[tex] x > \frac{ - 11 - 22}{2} [/tex]

I hope it helps you.

You get a student loan from the New Mexico Educational Assistance Foundation to pay for your educational expenses this year. Find the interest on the loan if you borrowed $5000 at 5% interest for 1 year

Answers

Answer:

500

Step-by-step explanation:

Mooooooooooseeeeeeeeee

find the midpoint rounded to the nearest hundreth a (-2,1) b (-1,1)

Answers

Answer:

[tex](-1.5, 1)[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

Endpoint A (-2, 1)

Endpoint B (-1, 1)

Step 2: Find Midpoint

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute [MF]:                    [tex](\frac{-2-1}{2},\frac{1+1}{2})[/tex]Subtract/Add:                       [tex](\frac{-3}{2},\frac{2}{2})[/tex]Divide:                                  [tex](-1.5, 1)[/tex]

It costs $22 to get a pass at a ski report, plus $5.50 each hour to rent skis. Another ski resort charges $18 for a pass and $7.20 per hour to rent skis. Find the number of hours for which the costs are the same. Round your answer to the nearest half hour.

Answers

set the equation for each ski resort.
ski resort 1: 5.50x +22
ski resort 2: 7.20x +18
(x represents the number of hours)
set the equations equal to find when the costs are the same
5.50x+22=7.20x+18
solve for x (subtract 5.50x from both sides, subtract 18 from both sides)
4=1.7x (divide by 1.7)
2.4=x
in 2 and a half hours the cost would be the same

A warehouse is used as a grannary. It is in
the shape of a cuboid surmounted by a
half-cylinder. The base of the warehouse is
6 m x 14 m and its height is 8 m. Find the
surface area of the non-cuboidal part of the
warehouse.

Answers

Answer:

7467.4 square meters djdkdkdmmdkd

A seamstress bought some some bolts of fabric at $25.30 each. She spent a total of $227.70. Write an equation and solve to find the number of bolts of fabric that she purchased.

Answers

Answer:

227.70 divided by 25.30

Step-by-step explanation:

if she spent 227.70 when 25.30 was how much the fabric costed, you will need to divide to find out how much fabric she got.

I really don’t know I knew I could solve this one but I’m stumped

PLEASE HELP i really need the answer asap

Answers

Answer:

its 16

Step-by-step explanation:

8 /x = 10/20

20 * 8 =160

10 * x =10x

10x = 160

x=16

The answer is
X is 16

A teacher is assessing the correlation between the number of hours spent studying and the average score on a science test.

The table below shows the data:
(Table In Image)

Part A: Is there any correlation between the number of hours students spent studying and the score on the science test? Justify your answer.

Part B: Write a function which best fits the data.

Part C: What does the slope and y-intercept of the plot indicate? ​

Answers

yes there is a a correlation

f(x) = 4x + 60

slope = 4

y-intercept = 60

There is a correlation between the number of hours spent on studies and the score on music test.

How to explain the correlation?

As we increase the 0.5 hour on studying, then the music score increases by 2. The function which best fits the data for the correlation is y=60 + 4x

The slope and y-intercept of the plot indicate? that Y= score obtained in music test and X=number of hours spent on studying. The slope of the above equation represent the rate of increase in music score with respect to an increase in the number of hours spent on studying.

The y-intercept gives the music score when the number of hours spent on studying is zero.

Learn more about correlation on:

https://brainly.com/question/4219149

#SPJ2

Is 14x+16x-4=5(4x+9)x=49 a solutionn or problem?

Answers

Answer:

its a problem there is still work to be done with it

Step-by-step explanation:

Classify the statements based on whether they are represented by +3 or -3.
deposit of $3
3 feet above sea level
loss of $3
3°F below 0°F
3 floors below ground level
3°F above 0°F

Answers

Answer:

If you deposit money, your bank account shows it as +3

3 degrees below zero = - 3 o F which is darn cold.

3 floors below ground level = - 3 floors below ground level

3 feet above sea level = +3 feet

3 degrees about 0 = + 3

3 dollars lost = -3 dollars.

Step-by-step explanation:

it took Corinne 3 hours to do 12 pages of homework.How many pages of homework did she do per hour?

Answers

Answer:

4 ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Step-by-step explanation:

12÷3=4

PLEASE HELP!!! Complete the equation of the line through (4, - 8) and (8, 5) Use exact numbers. y =

Answers

Slope=(5--8)\(8-4)= 13\4

13\4(x-4)=y+8

13\4x-13-8 =y

13\4x-21=y

Jonathan is driving to his grandma’s house. Jonathan’s car is going 75 mph and he has to go 340 miles still. Brighton, Jonathan’s cousin, is leaving his house and is traveling 70 mph and has to 320 miles. Who gets to grandma’ house first? How much faster do they get there?

Answers

Answer:

Johanatho will get in 4.53 hours. joahnathons cousin will take 4.57 hours.

Step-by-step explanation:

340/75=4.53

320/70=4.57

HELP PLEASE!! Function G is a transformation of the parent exponential function. Which STATEMENTS are true about function g.

a.) function g decreasing over the interval
b.) function g is a positive over the interval
c.) function g has a y intercept of(0,4)
d.) function g is 4 units above function f
e.) the domain of function g is x>0
f ) the range of function g is (3,infinity)​

Answers

Answer:

c. function g has A y intercept of (0,4)


Find the sale price of the item. Round to two decimal places when
necessary. *
Original Price: $40.00; Markdown: 15%
$46
$34
$42
$32

Answers

First, determine what 15% of $40 is.

Convert 15% to a decimal: 0.15

Then multiply this decimal by $40: 0.15 x 40 = 6

So the discount is $6.

We subtract the discount from original price to get sale price.

40-6= 34

So the item will cost $34.

what is 2 + (-7/20)? I've been trying to figure it out for a while but i cant seem to get the right answer.

Answers

The answer you should get is 33/20 or 1.65. How you get this answer is you start by removing the parentheses, then calculate the difference.

2 + (-7/20)

2 - 7/20

20 times 2 equals 40

Subtract 7 from 40

Keep your denominator the same and change your numerator to 33.
Other Questions
How is using constructive language and showing encouragement related to respect?30 points helppp please ????????? What is the median of this data set?9, 7, 9, 7, 3, 5, 9.A. 3B. 4C. 7D. 9 Carlos went kayaking and burned 380 calories. It's a hot day, and he decides to replace all of his calories to keep his energy up. Select a snack from the following options that will allow Carlos to replace his calories. the sizes of the angles in degrees of the quadrilateral arex+102xx+30x+80a) use this information to write down and equation in terms of x b) use your answer to part a to work out the size of the smallest angle of the quadrilateral Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.If the triangles are similar, write a valid similarity statement. Identify the charges = Mg2+ F1 Why does the body slow down during extreme heat that cause me it to work harder to maintain normal body conditions A. CondensationB. Precipitation C.Evaporation Can someone please help me? Ive been googling and I cant find anything.Who is a famous person with separation anxiety? PLS huRrY!! if u get it right ill make u brainiest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!here did the Tuscaroras agree to live at the end of the Tuscarora War?at the Fort Nooherooka battle site in Jamestown, Virginiaon a reserve on the Albemarle Peninsulain the Great Smoky Mountains can someone help me with this write three correct independent clauses and three dependent clauses. How high does a rocket have to go above the earth's surface to be subject to a gravitational field from the earth that is 50.0 percent of its value at the earth's surface?A) 2.650 km B) 3,190 km C) 9.020 kmD) 12.700 km Complete the following descriptions. Add an article and capitalize the description where it's necessary. describe about a family member 12-15 sentences. 5. If AABC = ADEF, find the measure of Can someone explain me? If you were to find a clean well-sorted sandstone what geologic events may have caused this? How are these events different from those that form an arkose? 15. What is the most important social unit in Saudi society?O the villageO the nationO the familyO the workersPlease help me out guys f(x)=4x+2 and g(x)=4(x9)+2.What transformation occurs from function f to function g? how did Lincoln want to treat the south after the civil war ?